Combined receiver and transmitter bracket for telephones.



I No. 772,773. 1 PATBNTED OGT.18,11904. f 4 H. AJBARNES & N. B. SHOWAGRE. COMBINED RECEIVER AND TRANSMITTER BRACKET FOR'TELEPHONES.

APPLIOATION Hum my a, 1904. I v

N0 MODEL.

crating the bell-circuit.

NITED STATES,

Patented October 18, 1904.

PATENT OFFICE.

HARRYA. BARNES AND NELSON E. SHOWAGRE, or BALTIMORE,

MARYLAND.

COMBINED RECEIVER AND TRANSMITTER BRACKET FO'R TELEPHONES.

SPECIFICATION forming part of Letters Patent No. 772,773, dated October 18, 1904.

' Application filed May 6,1904. Serial No. 206,619. (No model.)

ful Improvements in a Combined Receiver and Transmitter Bracket for Telephones, of which the following is a specification.

Ourinvention relates to a combined receiver and-transmitter bracket for telephones.

One object of the invention is to provide a single bracket for supporting both the receiver and transmitter of a telephone, but which will permit the receiver and transmitter to be adjusted independently of each other to suit the operator. Another object of the invention is to provide a construction of bracket by which the positions of the receiver and transmitter may be adjusted simultaneously or independently to suit theoperator, but which will always require the operator to assume a'correct position with respect to the transmitter.

Another object of the invention is to provide a construction of bracket by means of which the transmitter may be adjusted in a vertical plane and the receiver adjusted in a vertical and also a horizontal plane.

"Anotherobject of the invention is to provide a bracket of such construction as will en.-

able an operator to use the telephone and while so doing to have the free use of both hands. With these and other objects in view thev invention is illustrated in the accompanying drawings, in which- Figure 1 1llustrates a perspective view of a ent invention. Fig. 2 illustrates an enlarged vertical section through the center of the telephone base-board and the mechanism for op- Fig. 3 illustratesa sectional plan view of a portion-of the telephone-box anda plan view of a portion of the mechanism for operating the ordinary receiver-hook, and Fig. 4: illustrates a side elevation of the receiver and a vertical section through the end of the receiver-arm and shows the details of construction by which the receiver has a lateral or yielding adjustment.

Referring to the drawings, Adesignates a telephone base-board provided with the usual box a for inclosing the mechanisin'now in use. These devlces may be constructed in any preferred way and are merely illustrative in the drawings, it being preferred to show the invention applied to' one of the usual telephone equipments now in daily use.

A bracket-plate b is secured to the base A in any suitable manner, and said plate is pro- I vided in the present instance with two outwardly-projecting lugs 'orears c and a central vertical slot 0. A bracket d, in the present instance of a substantially. U-shaped form, is provided .with a lug e at its rear, which latter fits between the lugs or ears 0 on the bracket plate I) and is pivotally connected to said lugs by means of a suitable screw or pin f. This lug end of said bracket is preferably frictionally secured between the lugs, so that the outer end of the bracket may be sustained in any vertical position to which it may be moved,

and the inner end of said lug is provided with a segment rack e. Thebracket dis also provided in the present instancewith two outwardly-extending armsg and h. The outer end of the arm gis bifurcated or slotted to form two parallel clamping-jaws- 9, between which the supporting-arm dot the transmitter I jprojects and is pivotally secured by a screw 2".

A gear'lc is mounted in the slot 0 of the bracket-plate I) and meshes with the segmentrack e on the inner end of the bracket-lug e, and this gear is mounted so as to project through a vertical slot a in the base-board A. A vertical rack-bar Z is mounted 'on the inner side of the base-board A, and the teeth of this rack mesh with the gear 76. bar is sustained in its vertical position by suitable brackets Z, which surround it and through which the rack-bar has vertical movement. A stem m is also mounted on the inner side of the base-board A, and the upper end of said stem has position directly beneath the lower end of the rack-bar and is provided with a yielding head m, on which the lower end of said rack-bar impinges when moved This rackwith two horizontal arms m and m which extend laterally and in a direction toward the vertical side wall of the box a, and the arm m" projects from the arm m in a direction at right angles to the stem m and has position above the usual hook-arm m, now used for supporting the receiver when the phone is not in use and which serves to establish such electrical connections as will enable the bell to be operated from the telephone-exehange. It is obvious that in the use of our device the hook proper on the outer end of the arm m may be entirely dispensed with. A spring a serves to keep the hook-arm m and the arms m m and stem m normally elevated that is, when the rack-bar Z is raised from the yielding head m, as will be presently described.

The electrical constructions are all preferably made in the usual way and form no part of the invention.

The arm h of the bracket (Z in the present instance extends in a direction parallel with thearm g and at its outer end pivotally supports an upwardlyprojecting link-arm 92.. This link-arm is bifurcated at each end, and the lower bifurcated end 12/ straddles the arm I) and is pivoted thereto by a pin or set-screw 71. The shoulder 92 at the lower end oz of said link-arm serves as a stop to limit the forward movement of said arm with respect to the arm 71. The upper bifurcated end 0 of the link-arm n receives the inner end of the receiver-arm 0, and said receiver-arm is pivotally secured to said bifurcated end 0.' The outer end of said receiverarm carries a conical spring p, the larger end of which latter is attached to a receiver q. By this construction the receiver may have a universal movement when the operators ear is pressed against it, so that the mouth of said operator may be directly in front of the transmitter. The usual Wire is connected to the receiver and serves the ordinary functions.

By this construction and arrangement of brackets and adjustable supporting devices it will be seen that the transmitter and receiver are independently adjustable and that when adjusted to suit the operator will compel the latter to talk directly into the transmitter and will leave the operators hands free for any purpose desired.

' Normallythat is, when not in speaking operation-the bracket (Z is pulled down, as shown in Fig. 2, so that the rack-bar Z will depress the stem m, the arms m and m and also the hook-arm 721*, so that the electrical conditions will be the same as when the receiver is hung on the end of the hook-arm. When the bracket is thus lowered, the transmitter will have a position too low for an ordinary person while standing to talk into same.

hen it is desired to use the phone, the operator will grasp the arm 9 of the bracket and adjust the height of the transmitter to the mouth, and this elevation of the said arm 1/ will impart a partial rotary motion to the gear and a vertical movement to the rack-bar As the rack-bar is raised from the head in the spring (L2 will raise the arm m and also the hook-arm m", and obviously the stem in. will also be raised. This elevation of the hookarm will establish the usual electrical circuits and put the telephone in readiness for talking. hen through talking, the operator will again depress the arm r and bracket, so that the rack will depress the stem and its arms and also the hook-arm.

It will be noted that the lower end of the rack is preferably unconnected to the head m or stem m and that the rack-bar maybe raised a considerable distance, as might be necessary in adjusting the transmitter to the mouth of a tall person.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. A telephone having signal mechanism in combination with a vertically movable bracket; a receiver and transmitter sustained by said bracket and movable therewith; a movable switcharm to establish and maintain a distant signal after the bracket is elevated and to break the said connection when the bracket is lowered.

2. A telephone having signal mechanism in combination with a vertically movable bracket pivoted at one end; a transmitter sustained by and movable with said bracket; a movable switch-arm below the pivoted end of said bracket and arranged to maintain a distant signaling connection while the bracket is elevated and to break said connection while the bracket is lowered, and means extending from the pivoted bracket down to the switcharm for operating the latter.

3. A telephone having a base-board provided with a box for inclosing signal mechanism, in combination with a bracket pivoted so as to move vertically above said signal mechanism; a receiver and transmitter carried by said bracket; aswitch-arm in said box beneath the pivoted bracket; lever mechanism extending from the pivoted bracket down to the switch-arm, and means whereby when the pivoted bracket has been elevated the switch-arm will move to and be maintained in the signaling position until the bracket is lowered.

4. A telephone having a base-board provided with a box for inclosing signal mech anism in combination with a bracket pivotally mounted on said board above said signal mechanism and provided at said pivoted end with a segment-rack; a switch-arm in said box heneath the pivoted bracket; lever mechanism for operating said switch-arm; a rack-bar for operating said lever mechanism, and a gear interposed between the pivoted bracket and the rack-bar for operating the latter.

5. A telephone having signal mechanism, in

I e e combination with U-shaped bracket pivotally mounted above said signal mechanism; a receiver sustained by one of the arms of said bracket; a transmitter sustained by the other arm of said bracket; a vertically-movable switch-arm beneath said pivoted bracket, and

means coacting between the bracket and the switch-arm for holding the latter down when the bracket is depressed and permitting said arm to maintain a distant-signaling connection while the bracket is elevated.

6. In atelephone the combination with a- U-shaped bracket provided with outwardlyprojecting parallel arms and an inwardly-pro- I jecting lug provided with-a segment-rack, of a receiver sustained by one of said arms and arranged to be adjusted both in avertical and a horizontal plane independently of. said bracket-arm; a transmitter sustained by the other arm of said bracket and movable in avertical plane therewith;- signal mechanism beneath said bracket; a switch-arm arranged wardly-projecting arm pivotally connected to I one of said bracket-arms and projecting above' the same; a receiver-arm pivotally connected to the upper end of said upwardly-pro ecting arm; a receiver supported by the said re' ceiver-arm and having a yielding connection with the latter; a transmitter pivotallysupported at the outer end of the other arm of said bracket; .a signal-switch arm below said bracket, and means connecting the switcharm with the U-shaped bracket whereby to move them simultaneously in the same direction.

8. A telephone having signal mechanism jin combination with a vertically-movable bracket; a receiver sustained by said bracket; a transmitter also sustained by said bracket;

a switch-arm to operate the signal mechanism; means interposed between the movable bracket and said switch-arm for operating the latter to maintain a distant-signal position and means whereby the switch-arm may be independently operatedto repeat the signal while the bracket is elevated.

In testimony whereof we afiix our sign atures in presence of two witnesses.

HARRY A. BARNES. NELSON E. SHOWACRE. Witnesses:

CHARLES B. MANN, J r., G. FERDINAND Voo'r. 

